You can look for a master, but as the saying goes...
"when the student is ready....the master will appear."
First I read a lot. I tried to find the best economists and read about economics, it's important.
I read (and watched video lectures/interviews) guys like Shiller, Krugman, Bernanke, Friedman, Kaynes, Smith, Hayek, Mises, etc.
Futures Magazine
The Economist
Wall Street Journal
New York Times
Financial Times
Investing.com
SeekingAlpha.com
Zerohedge (just 'cuz it's interesting, or used to be)
Really made sure to study monetary theory, banking - Yellen, Friedman, Volcker, Bernanke...
I had to understand how the yield curve, FOMC, Fed funds target, GDP, unemployment, and inflation all work together. That took a long time.
This is just a side project (gives you a useful background).***
Then you can learn all about volatility, margin mechanics, risk modeling, hedging... and on and on.
The actual (advanced) trading techniques are secretive and hidden behind NDA's, non-compete agreements, 'trade secrets' and vigorously protected "proprietary information."
Pro traders don't talk much.
There's a lot of regulations from FINRA, the SEC and CFTC. The investment banks, prop firms, and market making firms are competitive. They even poach each others' talent. They like ivy league types.
Frank Partnoy writes some good books about the street (great books).
The best (and hardest) thing to know is market structure and financial engineering. But, that requires that you're good at mathematics.
Obviously, there's an easy way to learn how to trade and a hard way. I kind of like the hard way, personally.